Quant Boosters  Gaurav Sharma  Set 4

Q25) A farmer has 88 m of barbed wire fencing. With this he encloses a field of area X sq. m. What can be said about the maximum possible value of X?
a) 600
b) 550
c) 500
d) 450

Q26) If a, b, c, d, e and f are non negative real numbers such that a + b + c + d + e + f = 1, then the maximum value of (ab + bc + cd + de + ef) is
a) 1/6
b) 1
c) 6
d) 1/4

Q27) How many 4 digit numbers can be formed using only 3 and 9, which is a multiple of 9

Q28) There are k candidates (where k is an odd number) for the Bookie Prize. The rules of the Bookie Prize say that at least 1 but not more than 50% of the candidates must be awarded a prize. If the number of possible ways of selecting the awardees is 63, find k.

Q29) A bus travels at a speed of 50 km/hr if it does not carry any passenger. Its speed decreases by a quantity directly proportional to the square of the number of passengers. If the bus carries 10 passengers, its speed is 45 km/hr. What will be its speed (in km/hr) if it carries 20 passengers?

Q30) Find the sum of all positive integral values of n such that 1001 + n^2 is a perfect square
a) 140
b) 548
c) 640
d) 671

how gap of 1 ?

7......................

@gaurav_sharma
640......................

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